package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.Category;
import com.itheima.reggie.entity.Dish;
import com.itheima.reggie.service.CategoryService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.List;

@Slf4j
@RestController
@RequestMapping("/category")
public class CategoryController {
    @Autowired
    private CategoryService categoryService;
    @PostMapping
    public R<String> save(@RequestBody Category category){
        categoryService.save(category);
        return R.success("新增成功");
    }

    /**
     * 分页查询
     * @param page
     * @param pageSize
     * @return
     */
    @GetMapping("/page")
    public R<Page> page(Integer page,Integer pageSize){
        // 分页构造器
        Page<Category> pageInfo = new Page<Category>(page,pageSize);

        LambdaQueryWrapper<Category> lambdaQueryWrapper = new LambdaQueryWrapper<Category>();

        lambdaQueryWrapper.orderByAsc(Category::getSort);
        categoryService.page(pageInfo,lambdaQueryWrapper);
        return R.success(pageInfo);

    }
    @DeleteMapping
    public R<String> delete(Long id){
        // 没有判断是否有这个数据 也没有判断那些数据引用了这个数据
//        categoryService.removeById(id);
        categoryService.remove(id);
        return R.success("删除成功");
    }
    @PutMapping
    public R<String> update(@RequestBody Category category){
        categoryService.updateById(category);
        return R.success("分类编辑成功");
    }

    @GetMapping("/list")
    public R<List<Category>> list(Category category){
        LambdaQueryWrapper<Category> lam = new LambdaQueryWrapper<Category>();
        // 添加条件
        lam.eq(category.getType()!=null,Category::getType,category.getType());
        // 添加排序条件
        lam.orderByAsc(Category::getType).orderByDesc(Category::getUpdateTime);
        List<Category> list = categoryService.list(lam);
        return R.success(list);
    }

}
